File:Planet around HR 8799.jpg
本预览的尺寸：750 × 600像素。 其他分辨率：300 × 240像素 | 600 × 480像素 | 960 × 768像素 | 1,280 × 1,024像素 | 2,560 × 2,047像素 | 2,576 × 2,060像素。
原始文件 （2,576 × 2,060像素，文件大小：3.02 MB，MIME类型：image/jpeg）
摘要
| 描述 |
English: This is an artistic illustration of the giant planet HR 8799 b. The planet was first discovered in 2007 at the Gemini North observatory. It was identified in Hubble NICMOS archival data in a follow-up search to see if Hubble had also serendipitously imaged it. The planet is young and hot, at a temperature of 1,500 °F (820 °C). It is slightly larger than Jupiter and may be at least seven times more massive (~7 MJ). Analysis of the NICMOS data suggests the planet has water vapor in its atmosphere and is only partially cloud covered. It is not known if the planet has rings or moons, but circumplanetary debris is common among the outer planets of our solar system. |
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| 日期 | ||||
| 来源 | http://hubblesite.org/newscenter/archive/releases/2009/15/image/a/ | |||
| 作者 | NASA, ESA, and G. Bacon (STScI) | |||
| 其他版本 |
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.jpg)
许可协议
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This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use. The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag. |
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| 日期/时间 | 缩略图 | 大小 | 用户 | 备注 | |
|---|---|---|---|---|---|
| 当前 | 2024年4月12日 (五) 20:49 | | 2,576 × 2,060（3.02 MB） | Юрий Д.К. | from print without loss |
| 2011年1月20日 (四) 12:24 |  | 2,561 × 2,042（1.46 MB） | Drtony999 | Larger Resolution. | |
| 2009年6月25日 (四) 20:19 |  | 1,280 × 1,024（1.11 MB） | NuclearVacuum | {{Information |Description={{en|1=This is an artistic illustration of the giant planet HR 8799 b.}} |Source=http://hubblesite.org/newscenter/archive/releases/2009/15/image/a/ |Author=NASA, ESA, and G. Bacon (STScI) |Date=2009-04-01 |Perm |
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